Thermodynamics of QCD at physical point with (2+1)-flavors of improved Wilson quarks using gradient flow

28 Jun 2017, 17:20


Kazuyuki Kanaya (University of Tsukuba)


The energy-momentum tensor and the chiral condensate are studied in (2+1)-flavor QCD with improved Wilson quarks at the physical point, applying the method of Makino and Suzuki based on the gradient flow. Following a strategy of our previous study at a heavier quark mass, we adopt a nonperturbatively O(a)-improved Wilson quark action and the renormalization group-improved Iwasaki gauge action and perform finite-temperature simulations in the range $T \simeq 155$-544 MeV ($N_t = 4$-14 including odd numbers) at $a \simeq 0.09$ fm based on the fixed-scale approach using zero-temperature physical point configurations generated by the PACS-CS Collaboration. We present preliminary results on the equation of state and the chiral condensate obtained so far.

Primary author

Kazuyuki Kanaya (University of Tsukuba)


Prof. Hiroshi Suzuki (Kyushu Univ.) Dr Masakiyo Kitazawa (Osaka University) Dr Ryo Iwami (Niigata Univ.) Dr Shinji Ejiri (Niigata University) Dr Takashi Umeda (Hiroshima Univ.) Prof. Yusuke Taniguchi (University of Tsukuba)

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